Zobrazeno 1 - 10
of 343
pro vyhledávání: '"O'Loughlin M"'
Autor:
O’Loughlin, M.
Publikováno v:
In Ethics, Medicine and Public Health July-September 2020 14
Publikováno v:
CERN-Proceedings-2012-002 (2012), 525 - 530
Extended air showers originate from interactions between ultra-high-energy cosmic rays and nuclei in the Earth's atmosphere. At present there are some discrepancies between experimental observed properties of these air showers and theoretical predict
Externí odkaz:
http://arxiv.org/abs/1303.4723
Publikováno v:
Fortsch.Phys.55:781-786,2007
We study a class of exact supersymmetric solutions of type IIB Supergravity. They have an SO(4) x SU(2) x U(1) isometry and preserve generically 4 of the 32 supersymmetries of the theory. Asymptotically AdS_5 x S^5 solutions in this class are dual to
Externí odkaz:
http://arxiv.org/abs/hep-th/0701119
Publikováno v:
JHEP 0705:030,2007
We study a class of exact supersymmetric solutions of type IIB Supergravity. They have an SO(4) x SU(2) x U(1) isometry and preserve generically 4 of the 32 supersymmetries of the theory. Asymptotically AdS_5 x S^5 solutions in this class are dual to
Externí odkaz:
http://arxiv.org/abs/hep-th/0611065
Publikováno v:
Nucl.Phys.B619:690-708,2001
We consider the path-sum of Ponzano-Regge with additional boundary contributions in the context of the holographic principle of Quantum Gravity. We calculate an holographic projection in which the bulk partition function goes to a semi-classical limi
Externí odkaz:
http://arxiv.org/abs/hep-th/0107112
Publikováno v:
JHEP 0107:035,2001
We show that for an eikonal limit of gravity in a space-time of any dimension with a non-vanishing cosmological constant, the Einstein -- Hilbert action reduces to a boundary action. This boundary action describes the interaction of shock-waves up to
Externí odkaz:
http://arxiv.org/abs/hep-th/0104039
Autor:
O'Loughlin, M. J., Randjbar-Daemi, S.
Publikováno v:
Nucl.Phys. B543 (1999) 170-182
We study a target space geometry of the form $AdS_3 \times {\bf R}$ for the $(2,1)$ heterotic string. This target space arises as the near horizon limit of a solitonic configuration in 2+2 dimensions. We investigate the null isometries of this space
Externí odkaz:
http://arxiv.org/abs/hep-th/9807208
Publikováno v:
Nucl.Phys. B514 (1998) 583-602
We consider euclidean D-branes wrapping around manifolds of exceptional holonomy in dimensions seven and eight. The resulting theory on the D-brane---that is, the dimensional reduction of 10-dimensional supersymmetric Yang-Mills theory---is a cohomol
Externí odkaz:
http://arxiv.org/abs/hep-th/9707118
Publikováno v:
Nucl.Phys. B503 (1997) 657-674
We present a Donaldson-Witten type field theory in eight dimensions on manifolds with $Spin(7)$ holonomy. We prove that the stress tensor is BRST exact for metric variations preserving the holonomy and we give the invariants for this class of variati
Externí odkaz:
http://arxiv.org/abs/hep-th/9705138
Autor:
Acharya, B. S., O'Loughlin, M.
Publikováno v:
Phys.Rev.D55:4521-4524,1997
In the context of D-dimensional Euclidean gravity, we define the natural generalisation to D-dimensions of the self-dual Yang-Mills equations, as duality conditions on the curvature 2-form of a Riemannian manifold. Solutions to these self-duality equ
Externí odkaz:
http://arxiv.org/abs/hep-th/9612182